Integrated Technology for Processing Gold-Bearing Ore

摘要

The article is devoted to the development of technology for the processing of gold-bearing raw materials. In the process of performing the work, the following methods were used: gravity recoverable gold test (method of Knelson, Canada), stage test of the Institute Technologies of mineral separation (Russia) (determination of the optimal size of ore grinding and the number of concentration stages). Simulation of gold recovery in the grinding cycle on KC-CVD with refinement of the concentrate was carried out. During the experiment on flotation, the determination of the optimal degree of grinding, the size of grinding of gravity tailings, the choice of the optimal consumption of butyl xanthate, and the study of the kinetics of flotation were carried out. At the final stage of the experiment, open experiments were carried out onflotation of the tailings of gravity concentration at different pulp densities, as well as a closed experiment on gravity-flotation concentration of the original ore. As a result of the study, the technological indicators of the developed technology were established. The total recovery of gold in the gravity concentrate and flotation concentrate of the II cleaning was 90.22 with a yield of 8.16 and an Au content of 47.39 g/t. The gold content in the flotation tailings was equal to 0.46 g/t.